Download it via composer.

Vendor folder is usually ignored for github and you are missing it.

i don't use composer before.Would you give me some instructions or tutorials for that

It's simple, just follow these docs: http://laravel.com/docs/installation#install-composer

Sorry it didn't work because composer not work in my pc.Please tell me if there any other easy way to install laravel

1.Download & Install WAMP http://www.wampserver.com/en/#download-wrapper 2.Download & Install Composer https://getcomposer.org/download/ (go to Windows Installer if you are using Windows and download the Installer .exe file). 3. Restart you computer. 4. Go to C:\wamp\bin\apache\Apache2.4.4\conf , open httpd.conf with notepad (any text editor), look for ssl_module , remove the # infront of LoadModule ssl_module modules/mod_ssl.so . 5. Start the Wamp Server 6. Run CMD as Administrator 7. in command prompt change directory to C:\wamp\www\ then run this code: composer create-project laravel/laravel myproject

the composer will install your fresh laravel 4.2 in C:\wamp\www\myproject

hope It Helps.

thank you both.now problem is solved :)

View this videos (https://www.youtube.com/watch?v=oGnlu6VLDVs ) or just read this article (http://www.w3itexperts.com/how-to-install-laraval-laravel-part...) i think you get the help about how to install laravel in widow xampp